:root
{
    --color_boton_base: #373435;
    --color_boton_base_hover: #ED3237;
}

.boton_St_4
{
    border: none;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    border-radius: 5px;
    overflow: hidden;
}
.boder_custom_button
{
    border: 1px solid rgb(224, 224, 224);
}
.cont_up_button
{
    width: 200px;
    height: 40px;
    border: 2px solid white;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cont_up_button p
{
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color_boton_base);
}
.linea_red_button
{
    width: 10%;
    height: 4px;
    background-color: var(--color_boton_base_hover);
    transform: width;
    transition: all 0.5s ease;
}

.boton_St_4:hover .linea_red_button
{
    width: 100%;
    background-color: var(--color_boton_base);
}

@media (max-width: 840px)
{
    .linea_red_button
    {
        width: 100%;
        background-color: var(--color_boton_base_hover);
    }
}